file-descriptor

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Error with resque-web: Couldn't get a file descriptor referring to the console

I\'m trying start resque-web, but this error occurs: [Sun Mar 06 05:27:48 +0000 2011] Starting \'resque-web\'...[详细]

2023-02-16 17:12 分类：问答
C: `write error: Bad file descriptor` after fork, dup2, and execv

Continuing on this problem, but I\'ll reiterate: For a homework assignment I have to write a basic shell including redirection. The program uses readline to prompt for input, parses the input string[详细]

2023-02-16 16:59 分类：问答
Unable to use GCD dispatch sources for reading from Serial Port file descriptors

I\'m having trouble using Grand Central Dispatch Source events when reading from serial ports. I use dispatch_source_create with DISPATCH_SOURCE_TYPE_READ so that the OS will run my block of code whe[详细]

2023-02-16 13:06 分类：问答
Running out of file descriptors for mmaped files despite high limits in multithreaded web-app

I have an application that mmaps a large number of files.3000+ or so.It also uses about 75 worker threads.The application is written in a mix of Java and C++, with the Java server code calling out to[详细]

2023-02-15 19:45 分类：问答
What are file descriptors, explained in simple terms?

What would be a more simplified description of file descriptors compared to Wik开发者_开发知识库ipedia\'s? Why are they required? Say, take shell processes as an example and how does it apply for it?[详细]

2023-02-15 18:55 分类：问答
4-Argument-Select-Question

From SELECT_TUT: \"... is used to efficiently monitor multiple file descriptors, to see if any of them is, or becomes, \"ready\"; that is, to see whether I/O becomes possible, or an \"exceptional co[详细]

2023-02-12 04:37 分类：问答
simultaneous read on file descriptor from two threads

my question: in Linux (and in FreeBsd, and generally in UNIX) is it possible/legal to read sing开发者_JAVA技巧le file descriptor simultaneously from two threads?[详细]

2023-02-11 08:49 分类：问答
Opera leaves long polling socket(s) open

We have a problem with long polling and opera. I myself am a c-programmer and have developed a customized http-daemon for our needs. In this case we needed a long polling server that would be able to[详细]

2023-02-08 02:47 分类：问答
File Descriptors: is it possible to non-block `write` arbitrary lengths of data?

Is it be possible to read and write arbitrary sizes of data using a file-descriptor as a handle (perhaps with a custom kernel driver)?[详细]

2023-02-07 20:41 分类：问答
Exception when calling setDataSource(FileDescriptor) method (failed.: status=0x80000000)

I\'m developing a video streaming application and I\'m getting stuck when calling set setDataSource with a FileDescriptor.[详细]

2023-02-06 10:39 分类：问答